## Rotationally symmetric geometries

 NGSpy allows to create rotationally symmetric geometries (e.g. a torus) using the CSG format. This is done by defining a two dimensional spline which is then rotated around an arbitrary axis.

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## Create 1D Geometries for BBND

Netgen 6.2 adds the possibility of defining Integrals on codimension 2 objects (on the boundaries of boundaries - BBND). This enables i.e. the definition of currents on a segment in a 3D geometry, to compute the magnetic field of a thin wire.

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